1FSS

ACETYLCHOLINESTERASE (E.C. 3.1.1.7) COMPLEXED WITH FASCICULIN-II

• PDB DOI: https://doi.org/10.2210/pdb1FSS/pdb

• Classification: COMPLEX (SERINE ESTERASE/TOXIN)
• Organism(s): Tetronarce californica, Dendroaspis angusticeps
• Mutation(s): Yes 


• Deposited: 1995-10-25 Released: 1996-03-08 
• Deposition Author(s): Harel, M., Kleywegt, G.J., Silman, I., Sussman, J.L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.310 
• R-Value Work: 0.230 
• R-Value Observed: 0.230 

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 

Biological assembly 1 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 67.86 kDa 
• Atom Count: 4,741 
• Modelled Residue Count: 593 
• Deposited Residue Count: 598 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ACETYLCHOLINESTERASE	A	537	Tetronarce californica	Mutation(s): 0  EC: 3.1.1.7
UniProt
Find proteins for P04058 (Tetronarce californica) Explore P04058  Go to UniProtKB:  P04058

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
FASCICULIN II	B	61	Dendroaspis angusticeps	Mutation(s): 1
UniProt
Find proteins for P0C1Z0 (Dendroaspis angusticeps) Explore P0C1Z0  Go to UniProtKB:  P0C1Z0

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	C [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
ZN	D [auth A], E [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.310 
• R-Value Work: 0.230 
• R-Value Observed: 0.230 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 87.39	α = 90
b = 115	β = 90
c = 67.47	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1996-03-08 
Deposition Author(s): Harel, M., Kleywegt, G.J., Silman, I., Sussman, J.L.

Revision History  

• Version 1.0: 1996-03-08
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Database references, Derived calculations, Structure summary
• Version 1.4: 2021-06-02
  Changes: Derived calculations, Structure summary